Package: countreg 0.3-0

countreg: Count Data Regression

Regression models for count data, including negative binomial, zero-inflated, zero-truncated, and hurdle models. Drivers for combination with flexmix and mboost are also provided. Previously available functions for graphical goodness-of-fit assessment (rootograms etc.) are now provided in the 'topmodels' package on R-Forge.

Authors:Achim Zeileis [aut, cre], Christian Kleiber [aut], Thorsten Simon [ctb], Kevin Huynh [ctb]

countreg_0.3-0.tar.gz
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countreg_0.3-0.tgz(r-4.6-any)countreg_0.3-0.tgz(r-4.5-any)
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countreg_0.3-0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
card.svg |card.png
countreg/json (API)
NEWS

# Install 'countreg' in R:
install.packages('countreg', repos = c('https://zeileis.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://r-forge.r-project.org/projects/countreg

Datasets:

On CRAN:

Conda:

5.41 score 6 stars 213 scripts 50 exports 20 dependencies

Last updated from:15fa125f69. Checks:7 NOTE, 2 OK. Indexed: no.

TargetResultTimeFilesSyslog
linux-devel-x86_64NOTE339
source / vignettesOK409
linux-release-x86_64NOTE339
macos-release-arm64NOTE119
macos-oldrel-arm64NOTE113
windows-develNOTE131
windows-releaseNOTE136
windows-oldrelNOTE118
wasm-releaseOK311

Exports:disptestestfun.zerotruncFLXMRnegbingetSummary.hurdlegetSummary.nbreggetSummary.zeroinflgetSummary.zerotrunchbinomhhnbinomhhpoishnbinomhpoishurdlehurdle.controlhurdletesthztnbinomhztpoisMBbinomialMBnegbinMBztnegbinMBztpoissonmean_binommean_hnbinommean_hpoismean_poismean_ztnbinommean_ztpoisnbregnbreg.controlsbinomshnbinomshpoissnbinomspoisszinbinomszipoissztnbinomsztpoisvar_binomvar_hnbinomvar_hpoisvar_poisvar_ztnbinomvar_ztpoiszeroinflzeroinfl.controlzerotrunczerotrunc.controlzitestztpoisson

Dependencies:clicpp11distributions3farverFormulaggplot2gluegtableisobandlabelinglifecycleMASSR6RColorBrewerrlangS7scalesvctrsviridisLitewithr

Countreg: Distributions

Thorsten Simon

Rendered fromcountreg-dists.Rmdusingknitr::rmarkdownon May 15 2026.

Last update: 2018-12-09
Started: 2018-12-09

Regression Models for Count Data in R

Rendered fromcountreg.Rnwusingutils::Sweaveon May 15 2026.

Last update: 2024-04-04
Started: 2013-07-28

Readme and manuals

Help Manual

Help pageTopics
Extension of the Binomial Distributionhbinom mean_binom sbinom var_binom
Parasite Infections in CodCodParasites
Horseshoe Crab MatingCrabSatellites
Dispersion Testsdisptest
FlexMix Interface to Negative Binomial Regression ModelsFLXMRnegbin
Extension of the Hurdle Negative Binomial Distributionhhnbinom mean_hnbinom shnbinom var_hnbinom
Extension of the Hurdle Poisson Distributionhhpois mean_hpois shpois var_hpois
Hurdle Models for Count Data Regressionhurdle print.hurdle
Control Parameters for Hurdle Count Data Regressionhurdle.control
Testing for the Presence of a Zero Hurdlehurdletest
mboost Families for Binary, (Zero-Truncated) Negative Binomial and Zero-Truncated Poisson RegressionMBbinomial MBnegbin MBztnegbin MBztpoisson
Negative Binomial Count Data Regressionnbreg print.nbreg
Control Parameters for Negative Binomial Count Data Regressionnbreg.control
Extension of the Negative Binomial Distributionhnbinom mean_nbinom snbinom var_nbinom
Oral Health in Children in The NetherlandsOralHealthNL
Extension of the Poisson Distributionhpois mean_pois spois var_pois
Methods for hurdle Objectscoef.hurdle extractAIC.hurdle fitted.hurdle getSummary.hurdle logLik.hurdle model.matrix.hurdle nobs.hurdle predict.hurdle print.summary.hurdle residuals.hurdle summary.hurdle terms.hurdle vcov.hurdle
Methods for nbreg Objectscoef.nbreg extractAIC.nbreg fitted.nbreg getSummary.nbreg logLik.nbreg model.frame.nbreg model.matrix.nbreg nobs.nbreg predict.nbreg print.summary.nbreg residuals.nbreg summary.nbreg terms.nbreg vcov.nbreg
Methods for zeroinfl Objectscoef.zeroinfl extractAIC.zeroinfl fitted.zeroinfl getSummary.zeroinfl logLik.zeroinfl model.matrix.zeroinfl nobs.zeroinfl predict.zeroinfl print.summary.zeroinfl residuals.zeroinfl summary.zeroinfl terms.zeroinfl vcov.zeroinfl
Methods for zerotrunc Objectscoef.zerotrunc estfun.zerotrunc extractAIC.zerotrunc fitted.zerotrunc getSummary.zerotrunc logLik.zerotrunc model.frame.zerotrunc model.matrix.zerotrunc nobs.zerotrunc predict.zerotrunc print.summary.zerotrunc residuals.zerotrunc summary.zerotrunc terms.zerotrunc vcov.zerotrunc
Takeover Bids DataTakeoverBids
Zero-inflated Count Data Regressionprint.zeroinfl zeroinfl
Control Parameters for Zero-inflated Count Data Regressionzeroinfl.control
Zero-Truncated Count Data Regressionprint.zerotrunc zerotrunc
Control Parameters for Zero-Truncated Count Data Regressionzerotrunc.control
Extension of the Zero-Inflated Negative Binomial Distributionszinbinom
Extension of the Zero-Inflated Poisson Distributionszipois
Zero Inflation Testszitest
Extension of the Zero-Truncated Negative Binomial Distributionhztnbinom mean_ztnbinom sztnbinom var_ztnbinom
Extension of the Zero-Truncated Poisson Distributionhztpois mean_ztpois sztpois var_ztpois
Family Object for the Zero-Truncated Poisson Distributionztpoisson